Water-heater.



' H. R. CHURCHILL.

WATER HEATER.

APPLICATION FILED JULY 17. 190B.

Patented N av. 30, 1909.

HENRY R. CHURCHIELL, 0F BUFFELLO, NEW YORK.

WATER-HEATER.

To all whom it may concern:

Be it known that LHENRY R. Crruncmnn, a citizen of the United Statesresiding at Buffalo, in the county of Erie and State of New York haveinvented a. certain new and useful Improvement in ll 'ater-Iileaters. ofwhich the following is a specification.

This invention relates to an improved water heater and the object is toproduce a comparatively cheap and economical device with which water maybe rapidly heated.

The invention also relates to certain details of construction, whichwill be hereinafter described and claimed reference being had to theaccompanying iflrawings in which Figure 1 is a central vertical sectionthrough my improved water heater and a storage tank of ordinary kind towhich it is attached, the heat detlectors within the fire tube of-theheaterb'ei ng shown in elevation. Fig. 2 is an enlarged plan VlQW of myimproved water heater with the upper-ring or stove pipe support removed.Fig. 3 is an enlarged transverse section through my improved waterheater on line a a, Fig. 1. Fig. 4 is an enlarged detached plan view ofthe burner of my improved Water heater. Fig. 5 an eulareed detached planView of the upper ring or store pipe support. Fig. 6 an. enlargeddetached side view of one of the cross like heat deflectors. Fig. "7 isa section on line Z) Z), l ig. (i. Fig. 8 is a central vertical sectionthrough one of the tubular heat deflectors on line 0 c. Fig. 9. Fig. 9is a transverse section on line at I]. Fig. 8. Fig. 10 is an enlargedfragmentary central section through. the burner. Fig. 11 is an innlarged fragmentary central section through the nozzle of the burner.

In referring to the water heater in detail like numerals designate likeparts.

In the accompanying drawings a heater or" the improved construction isshown connected to a Water tank 1, of conventional type which is mountedon a base 2. A pipe 3 which is connected to a source of water supplyserves as the cold water inlet pins to the water tank. The hot wateroutnet pipe 4 is connected to the top of the tank and extends to any"desired location.

The heating device has two vertical tubes 5 and 6 which are arrangedconcentrically with each other. These tubes differ in diameter and thesmaller tube 5 is located. within thelarger'tuhe 6 and is sutlicientlvSpecification of Letters Patent. application filed July 17, 1906.

Patented Nov, 3%) Serial No. 443,957,

smaller than the larger tube to leave an anuular space 7 between thetubes. The tubes are joined at their upper and lower ends to entirelyclose the upper and lower ends of the annular space 7 by rings 8 and 9.These rings are fitted in place between the tubes and are secured to thetube surface by welding or other suitable means, preferably by theautog'enous or gas weldingmethod. .Pipe connections 10, 11 and 1.2 arealso preferably welded to the surface of the outer tube 6 that the tubeswith their connecting parts practically constitute an integralinseparate element which can never leak.

A burner 13 is located centrally beneath the lower end of the inner tube5 and extends upward from an air mixer which consists of a bell-shapedor flaring enlargement 1+1 dependingbelow the burner and having armswhich radiate from a. central boss 15; and connectf'to the lower end ofthe enlargement. A pipe 16 which is exteriorly screw threaded has itslower end adjustably screwed into a base or pedestal 17 and its upperend adjustably screwed into an openin in a l coupling 18 which isconnected y piping 19 to a source of gas supply. A short pipe 20 has itsends screwed into the boss 15 of the bell shaped enlargement and the Tcoupling 18. An air regulating disk 21 is adjustably mounted on the pipe20 and is adjustable in a vertical direction to regulate the volume ofair admitted into the bell-shaped ei'ilargement 14. A nozzle is fittedin the upper end of the pipe 20. A

cup 23 arranged around the hurner servesto catch the drip caused bycondensation. This cup is prefe'ably made integral with the burner.

*Within the inner tube 5 which constitutes the fire tube is arranged aseries of defleeting elements which serve to muffle the noise of theburner and to deflect the heat against the surface of the tube, causing"the flame, the heat and the products of combustion to follow acircuitous path in passing through the tube and thereby more ellicieutlyheating tl!e't11l).. These elementsconsists oi. skeleton elements havingradial arms and tubu- .lar elements. The lower element has a series ofarms 24 preferably tour in number which radiate from a common centralbody 25 and a stern Edwhieh screws into a central opening in the.perforated top portion of the burner. This element is arranged horizontally with the arms extending horizontally.

Above the lower element is located a series of similar elements 27preferably six in number which are arranged in vertical and horizontalpositions as shown in Fig..1.' The arms of those arranged in verticalposition extend diagonally and the arms of those arranged in horizontalposition extend horizontally and serve to interrupt the flow of theflame and to deflect it into contact with the inner tube. The arms ofthe vertical elementsact as supports for the horizontal elements andalso serve to separate the horizontally arranged elements and providepassages. for the heated gases and. products of combustion. Above theradial arm elements are arranged a series of tubular elements in avertical row. Each of these elements consist of a tube 28 having aseries of slots 29 for the passa e of the products of combustion and aange 30 which extends outwardly from about midway of the tube.

' The ends of the tubular elements are closed and the slots 29 are cutin the circular side Walls of the elements in two circular rows, onebeing arranged above the flange 30.

and the other below the'flange so that the products of combustion passinto the tubular element through the lower series of slots and outthrough the upper series ofslots and thus follow a circuitous path' andare deflected against the inner tube to rapidly heat the same.

A top 31 isarranged over the upper ends of the tubes and has anoverhanging flange 32 and a central upwardly extending tubular portion33 to which the lower end of a chimney pi e 34 is attached.

The tubu ar elements are supported by a depending rod 35 which has aneye, at-its upper end through which a transverse bar 36 passes. This baris supported in V-shaped depressions in lugs 37 forged'on opposite sidesof the interior of the upwardly extending tubular portion 33 of the top31.

The rod sses through openings 38 in the tubular e ements and a nut 39screwed-upon the lower end of the rod retains the tubular elements inplace therein. The to 31 also has a short depending annular ange 4.0which fits within the upper end of the fire tube 5 and serves to securethe top in place.

The outlet pipe 41 for hot water is attached to the upper pipeconnection 10 and is connected'at its other end to the pipe 4, and theinlet pipe 42 for cold water leads from the bottom of the storage tankits the lower pipe connection 11 on the heater see Fig. 1. 4

A blow off faucet 43 for cleaning purposes is attached to the connection12 and the gas supply pipe 19 has the usual valve 44.

The operation of the heater will be easily understood from the foregoingdescription and drawings. The heated gases and the products ofcombustion first impinge against the surfaces of the skeleton elementsand are separated and deflected in various directions. Upon reaching thetubular elements located in the upper portion of the tube, the gaseswhich have cooled somewhat are collected in the tube and th n forcedoutward in a series of streams agai! it the inner surface of the tubeand heating the same. By this means the tube is heated uniformlythroughout, as the tubular elements offer more of an obstruction to thepassageof the gases than the skeleton elements and enable a largepercentage of theremaining heat units of the gases to be convectcd tothe wall of the tube.

I claim- I 1. in a water heater, two concentric tubes separatedsufficiently to leave an annular water space and the inner tube beingopen throughout to constitute the fire tube, a burner beneath the tubesand skeleton deflecting elements within the inner tube, each having acentral body and radial arms extending from said body and located atequal distances apart, one of said deflecting elcments being horizontalwith its arms extendmg horizontally, and another being vertical with itsarms extending diagonally and serving as supports for the horizontallyarranged deflecting element.

2. In a water heater, two concentr c: tubes separated sufliciently toleave an annular water space, a burner beneath the tubes, a series ofskeleton deflecting elements within the inner tube having a central bodyand radial arms, some of said skeleton elements being arrangedhorizontally with their arms extending horizontally and others beingarranged vertically with their arms extending diagonally and servin assupports for the horizontally arrange deflecting elements and tubulardeflecting elements within the inner tube above the skeleton deflcdtingelements.

3. In a water heater, two concentric tubes separated sufficiently toleave an annular water space, a burner beneath the tubes and a series ofskeleton deflecting elements within the inner tube having a central bodyand radial arms, some of saiil skeleton elements being arrangedhorizontally witli their ur ns extending horizontally and others beingarranged vertically with their arms extending diagtmally and serving assupports for the horizontally arranged deflecting elements.

4. In a water heater, two concentric tubes separated sufficiently toleave an annular water ace, a burner beneath the tubes, a series 0skeleton deflecting elements within the inner tube having a central bodyand radial arms, some of said skeleton elements being arrangedhorizontally with their arms extending horizontally and others beingarranged vertically with their arms extending diagonallv and servingas'sunnforts for the horizontally arranged deflecting elements! and atubular deflecting element arranged vertically within the inner tube andsmaller in'circumference than said inner tube, said tubular deflectingelement being located above the skeleton deflecting elements and havingclosed ends and an intermediate annular outer flange which extends inpr0xilnity t0 the inner surface of the wall (if the inner tube and beingprovided \Villl sale 10 openings in the Walls above and below the ange.

HENRY ll. (llllllC-llllill. Witnesses:

L. M. SANGSTI'IH, Gnuaun A. Nnunuuca.

